An introduction to Sigfox and LoRa PHY and ...
Type de document :
Pré-publication ou Document de travail
Titre :
An introduction to Sigfox and LoRa PHY and MAC layers
Auteur(s) :
Ferré, Guillaume [Auteur]
Laboratoire de l'intégration, du matériau au système [IMS]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Laboratoire de l'intégration, du matériau au système [IMS]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
In this paper we present an introduction to Sigfox and LoRa physical and MAC Layers. I. SIGFOX MODULATION A. Sigfox Physical layer Sigfox is based on ultra-narrow band (UNB) physical layer where the binary data are broadcast ...
Lire la suite >In this paper we present an introduction to Sigfox and LoRa physical and MAC Layers. I. SIGFOX MODULATION A. Sigfox Physical layer Sigfox is based on ultra-narrow band (UNB) physical layer where the binary data are broadcast with a differential binary phase shift keying (DBPSK) modulation at a very low rate R b,s = 100 bps. Thus, the transmitted signal occupies a band of approximatively W s = 100Hz. Sigfox nodes use a Random Frequency and Time Division Multiple Access (RFTDMA) to transmit their signals. The frequency hopping is done inside a bandwidth B >> W s. This ensures channel diversity and deep fading protection. The expression for the signal (or packet) transmitted by the Sigfox node n s is: r ns s (t) = k∈Ss A k g(t − kT s)e j2πfpt (1) where • T s = 1 R b,s is the symbol period, • A k is the DBPSK symbol transmitted at time kT s ,Lire moins >
Lire la suite >In this paper we present an introduction to Sigfox and LoRa physical and MAC Layers. I. SIGFOX MODULATION A. Sigfox Physical layer Sigfox is based on ultra-narrow band (UNB) physical layer where the binary data are broadcast with a differential binary phase shift keying (DBPSK) modulation at a very low rate R b,s = 100 bps. Thus, the transmitted signal occupies a band of approximatively W s = 100Hz. Sigfox nodes use a Random Frequency and Time Division Multiple Access (RFTDMA) to transmit their signals. The frequency hopping is done inside a bandwidth B >> W s. This ensures channel diversity and deep fading protection. The expression for the signal (or packet) transmitted by the Sigfox node n s is: r ns s (t) = k∈Ss A k g(t − kT s)e j2πfpt (1) where • T s = 1 R b,s is the symbol period, • A k is the DBPSK symbol transmitted at time kT s ,Lire moins >
Langue :
Anglais
Source :
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- Phy_Mac_layer_LoRa_Sigfox_IET_Network.pdf
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